CN1209059C

CN1209059C - Chairs

Info

Publication number: CN1209059C
Application number: CNB021568162A
Authority: CN
Inventors: J·齐默尔曼
Original assignee: Dauofie Development & Investment GmbH
Current assignee: Dauofie Development & Investment GmbH
Priority date: 2001-12-14
Filing date: 2002-12-13
Publication date: 2005-07-06
Anticipated expiration: 2022-12-13
Also published as: DE10161587A1; EP1319354A3; US6719373B2; EP1319354A2; US20030111890A1; EP1319354B1; CN1423986A; DE50210305D1; CA2409002A1; HK1052845A1; ATE364337T1; HK1052845B

Abstract

A chair, in particular an office chair, comprises a pedestal; a seat support propped thereon; a seat supporting itself on the seat support; a backrest support mounted on the seat support; a headrest support mounted on the backrest support; and a headrest mounted on the headrest support and having a height setting mechanism for height adjustment of the headrest and an inclination setting mechanism for adjustment of an angle of inclination a of the headrest.

Description

Chair

Technical field

The present invention relates to a chair, particularly relate to an office chair.

Background technology

There is the chair of head rest very general.Head rest generally has such shortcoming, the promptly complicated arrangement for adjusting height with retaining mechanism.The adjusting of gradient is generally impossible.

Summary of the invention

Purpose of the present invention is for realizing that one has the chair of head rest, and its height and inclination angle can both as far as possible easily be regulated.Main points of the present invention are that head rest has the height arrangement for adjusting height simultaneously and is used for the device that gradient is regulated.

Comprise a base according to chair of the present invention, one is supported on chair base supporting on this base, one himself is bearing in the seat support on the chair base supporting, one is used for the back support of backrest, back support is contained on the chair base supporting, one is contained in the head rest supporting on the back support, and a head rest, and it is contained in the height adjustment mechanism that the head rest supporting is gone up and had a height that is used for head rest to regulate; With a tilt adjustment mechanism of adjusting that is used for the angle of inclination a of head rest.

Described height adjustment mechanism comprises at least one guide rail, perhaps preferably includes two guide rails.And at least one guide rail is with respect to the vertical plane bending.

According to another aspect of the present invention, at least one friction guide pad is directed at least one guide rail movably.

In addition, tilt adjustment mechanism comprises one, and this axle is supported with respect to the head rest supporting.Preferably, but axle with respect at least one friction guide pad frictional rotation fix.

Best, two guide rails pair and the common frameworks that form of two crossbeams.This framework comprises facing, is used to form the outline of head rest.In addition, facing has a cover plate.

The simple declaration of accompanying drawing

To understand other characteristics and the details of invention the explanation of the exemplary embodiment of doing from appended connection with figures, wherein:

Fig. 1 is the figure of the office chair of taking the lead to lean on;

Fig. 2 is the details of magnification ratio of the head rest of Fig. 1;

Fig. 3 is the frame construction drawing of the head rest of Fig. 2;

Fig. 4 is the cutaway view along the IV-IV line of Fig. 2; And

Fig. 5 is the cutaway view along the V-V line of Fig. 2.

The explanation of preferred embodiment

The chair of seeing in Fig. 11 particularly office chair comprises a base 2, and it supports himself on the ground with Caster 3.Being contained on the base 2 is a Height Adjustable chair post 4, detachably fixes a chair base supporting 5 in the upper end of chair post, and the seat support 6 that mat is housed is installed on chair base supporting.Being contained on the rear end of chair base supporting 5 is substantially up a back support 7, is fixed with the backrest 8 that mat is housed thereon.Being contained on the upper end of back support 7 is head rest supporting 9, is fixed with head rest 10. thereon

Be the detailed description of contact Fig. 2 to 5 of the structure of head rest 10 below.Back support 7 comprises two basic vertical and parallel bars 11, and they extend to the upper end of backrest 8 always, penetrate in the head rest frame support bracket 12 with its upper end.Carriage 12 penetrates in the supporting 13 of trunnion axis interference fit the cross section tapered reduction of this supporting with its upper end again.The free end 14 of supporting towards each other.Head rest 10 is supported also in conjunction with thereon with respect to carriage 12.

Head rest 10 has one by two parallel guideways 16 and two frameworks 15 that interconnected crossbeam 17 forms.As shown in Figure 5, guide rail 16 is made shaped form and for example is made up of steel spring plate.The guide rail 16 of guideway extends and upper and lower settings abreast.Crossbeam 17 has long rectangular shape, and its end is crossed the fastening point 18 that crossbeam 17 and guide rail 16 are coupled together and stretched out.Pass between two guideways 16 for one 19, at its two ends axle journal 20 is arranged, this axle journal is fixed on corresponding holding in 13 the dimple 21 with interference fit.Therefore, axle 19 is fixed into non-rotatable substantially with respect to supporting 13.Two pairs of friction guide pads 22 of framework 15 usefulness are bonded on the axle 19.Piece 22 has a hole 23 in the centre, axle 19 passes this hole.In a side respect to one another, piece 22 has two grooves 24 respectively, and its degree of depth is slightly less than half of width of guide rail 16.Piece 22 connects with two screws 25 respectively, forms a pair 26.Four grooves 24 of secondary 26 surround two guide rails 16, form two passages.Friction between piece and the guide rail 16 is regulated with screw 25.Secondary 26 can resist an opposite force (counter-force) moves on guide rail 16, is configured for the height adjustment mechanism of head rest 10.Frictional force between guide rail 16 and two pairs 26 will so be regulated so that the power head rest that need not any effect from the outside all relatively external support axle 19 be still on any preposition.

Near hole 23, interior positive 27 of piece 22 has the taper enlarging 28 in a hole 23.Therefore, between the pair 26 of axle 19 and two pieces 22, formation one wherein is placed with the doughnut of rubber ring 29.Be screwed in a time-out at two pieces, 22 usefulness screws, the conical surface near the chamber the enlarging 28 helps rubber ring 29 is pressed against on the axle 19, thereby the predetermined frictional force between axle 19 and framework 15 is adjustable.Since axle 19 be fixed into respect to supporting 13 non-rotary, therefore, the effect that head rest 10 can only resistance and putting around axle 19 pivots.Do the time spent from the outside without any power, head rest 10 can rest on any default position by any inclination angle a with respect to vertical line.At this on the one hand, axle 19 and piece 22 combinations constitute a tilt adjustment mechanism that is used to regulate the inclination angle a of head rest 10.

The polylith facing of framework 15 bags for example to make of wood.Two half-cylindrical sections 30 are contained in the bottom side of the upside and the sill 17 of entablature 17.The cover plate 31 of one bending is fixed on front and back.Cover plate 31 has that piece 22 is along the rectangle dimple 32 of its walking when highly regulating, and the part of piece stretches in this dimple 32.This makes head rest 10 that the compact as far as possible structure that is used to implement be arranged, because the gross thickness k of the facing of head rest 10 only slightly surpasses the thickness S of piece 22.The end plate 33 of the bending of two elongated holes 34 with two bendings is contained in the end face of framework 15, and axle 19 moves in elongated hole 34.Only decorate with leather or fabric as shown in Figure 1-for example among Fig. 2 with the head rest 10-shown in its facing.

Be the detailed description of the operator scheme of head rest below.In order to change the height of head rest 10, the user of chair 1 upward or following pressurization.If its power is enough to overcome given frictional force, guide rail 16 just moves in the groove 24 of piece, and its result has just changed the height of head rest 10.Because the frictional force of effect between guide rail 16 and piece 22, head rest 10 is stable on the new position of regulating, and can be once more toward gliding.If regulate the inclination angle a of head rest, the user just leans on around axle 19 pivot yaws.Because axle journal 20 is non-rotatably to be fixed in the supporting 13, so piece 22 is put with respect to axle 19 pivots.Because the frictional force between the wall in hole 23 and the axle 19, and because the frictional force between piece 22 and axle 19 of using rubber ring 29 to regulate, so only need minimum rotating torque that head rest 10 is put around axle 19 pivots.When surpassing this frictional force, just produce the pivot pendulum of head rest 10.If there is not external torque to act on the head rest 10, it is static that head rest just keeps on the position that regulates.

Because towards the back bending, so the people's of head rest 10 some leans back of adaptation the head and the profile of back.Special advantage is that when some people's leans back, the inclination angle a of head rest 10 can regulate automatically.The controllability assurance user's of head rest height top is almost leaned on axle 19 and is flushed, and the swing property of head rest 10 is then basic corresponding with people's neck.The result is to feel light and convenient when head rest 10 uses.Be also advantageous in that especially the height of head rest 10 and inclination angle can be regulated simultaneously and can infinitely be changed.In addition, the head rest 10 that can surpass 360 ° of rotations provides such possibility, and promptly the user can use it as projection or recessed head rest surface.In the position of the head rest shown in Fig. 1 and 2 10, direction is from the beginning looked, and the head rest surface is recessed into.Around axle 19 Rotate 180s ° the time, just can use opposite head rest surface.

Claims

1. a chair, it comprises:

A. a base (2);

B. one be supported on upward chair base supporting (5) of this base (2);

C. a seat support (6) that himself is bearing on the chair base supporting (5);

D. a back support (7) that is used for backrest (8), back support (7) is contained on the chair base supporting (5);

E. a head rest supporting (9) that is contained on the back support (7); And

F. a head rest (10), it is contained in head rest supporting (9) and goes up and have:

I. one by at least one guide rail (16) with go up the height adjustment mechanism that the height that is used for head rest (10) that at least one friction guide pad (22) of guiding constitutes is regulated at described at least one guide rail (16) movably; With

Ii. a tilt adjustment mechanism by the adjusting of the angle of inclination a that is used for head rest (10) of an axle (19) that is supported with respect to head rest supporting (9) and described at least one friction guide pad (22) formation.

2. chair as claimed in claim 1 is characterized by, and at least one guide rail (16) is with respect to the vertical plane bending.

3. chair as claimed in claim 1 is characterized by, its axis (19) with respect to described at least one the friction guide pad (22) but frictional rotation fix.

4. chair as claimed in claim 1 is characterized by, and two pairs of guide rails (16) are set.

5. chair as claimed in claim 4 is characterized by, and two pairs of guide rails (16) form a framework (15) jointly with two crossbeams (17).

6. chair as claimed in claim 5 is characterized by, and framework (15) comprises facing, is used to form the outline of head rest (10).

7. chair as claimed in claim 6 is characterized by, and facing has a cover plate.